Since it was introduced 17 years ago, capsule endoscopy has become an important diagnostic tool for the small bowel. Three generations of the original small bowel capsule have been developed since (PillCam SB3, Medtronic, USA), and four competitors were introduced for the small bowel. A non-video patency capsule (Agile patency capsule, Medtronic, USA) was also developed, in order to confirm patency and thus avoid retention in the GI tract. Moreover, capsules viewing other organs of the body (esophagus, colon) as well as three different magnetic guided capsules that visualize the stomach as good as optical endoscopy (OE) have been developed. Over 2,000 articles looking at the efficacy of the small bowel capsule in different clinical situations were published since then. Studies are comparing capsule endoscopy versus other modalities in various indications, looking at preparations aiming to improve the diagnostic yield and at technical aspects. The present paper, describes the available capsules in the market and my biased future expectations.
- Colon capsule endoscopy (CCE)
- Magnetic capsule endoscopy (MCE)
- Optical endoscopy (OE)
- Small bowel capsule endoscopy (SBCE)